IMPACTS of LANDCLEARING the Impacts of the Approved Clearing of Native Vegetation on Australian Wildlife in New South Wales © Viewfinder
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IMPACTS OF LANDCLEARING The Impacts of the Approved Clearing of Native Vegetation on Australian Wildlife in New South Wales © Viewfinder WHEN LAND IS CLEARED, EVERYTHING THAT LIVES IN IT IS KILLED. – AUSTRALIA STATE OF THE ENVIRONMENT 2006 © WWF-Australia. All Rights Reserved. WWF-Australia Head Office GPO Box 528, Sydney, NSW, Australia 2001 Tel: +612 9281 5515 Fax: +612 9281 1060 wwf.org.au Published February 2007 by WWF-Australia. Any reproduction in full or in part of this publication must mention the title and credit the above-mentioned publisher as the copyright owner. The opinions expressed in this publication are those of the author and do not necessarily reflect the views of WWF. For bibliographic purposes this report should be cited as: Johnson, C., Cogger, H., Dickman, C. and Ford, H. 2007. Impacts of Landclearing; The Impacts of Approved Clearing of Native Vegetation on Australian Wildlife in New South Wales. WWF-Australia Report, WWF-Australia, Sydney. Impacts of Land Clearing ISBN:b 1 921031 17 4 World Wide Fund forW NatureWF-Australia ABN: 57 001 594 074 CONTENTS ABOUT THE AUTHORS 2 EXECUTIVE SUMMARY 4 1. BACKGROUND 6 2. MAMMALS 12 3. BIRDS 20 4. REPTILES 28 5. CONCLUSION 34 REFERENCES 36 Impacts of Land Clearing WWF-Australia 1 ABOUT THE AUTHORS DR HAL COGGER PROFESSOR CHRIS DICKMAN REPTILES MAMMALS Dr Hal Cogger is a leading Australian herpetologist and author of the Professor Chris Dickman is a highly respected scientist with nearly definitive Reptiles and Amphibians of Australia. He is a former Deputy 30 years’ experience of working on the ecology, conservation and Director of the Australian Museum. management of Australian mammals. Since 1990, he has been Director of the Institute of Wildlife Research at the University of Sydney. In 2004, he Dr Cogger has participated on a range of policy and scientific committees, was awarded a personal chair in ecology at the university. including the Commonwealth Biological Diversity Advisory Committee, Chair of the Australian Biological Resources Study Advisory Committee For much of the last 20 years, Professor Dickman has studied the factors and Chair of the Australasian Reptile & Amphibian Specialist Group that influence vertebrate diversity in arid Australia. In this work, he has (IUCN’s Species Survival Commission). He also held a Conjoint identified habitat loss, feral cats and foxes as being particularly detrimental Professorship in the Faculty of Science & Mathematics at the University to the survival of native fauna. of Newcastle (1997-2001). Professor Dickman is a past President of the Australian Mammal Society and He is currently the John Evans Memorial Fellow at the Australian Museum. of the Royal Zoological Society of New South Wales, past Chair of the NSW Scientific Committee, and Chair of the Australian Marsupial and Monotreme Hal Cogger’s research interests include the systematics and ecology Specialist Group for the Species Survival Commission of the IUCN. of Australian reptiles and frogs and the role of threatened species in conservation biology and policy development. He is senior author of the Professor Dickman currently serves on the national assessment panel for Action Plan for Australian Reptiles. the Threatened Species Network Community Grants Program, the NSW Biodiversity Research Network, and the Scientific Advisory Committee for For his contribution to Australian herpetology, Dr Cogger has been Earthwatch. awarded an AM, an honorary Doctor of Science from the University of Sydney, and honorary life memberships of the Australian Society of Professor Dickman has written or edited 16 books and monographs and Herpetologists, the American Society of Ichthyologists and Herpetologists authored a further 220 journal articles and book chapters. He is a recipient of and The Herpetologists’ League, Inc. He is a recipient of the Whitley a Bolliger Award and Troughton Medal from the Australian Mammal Society. Medal of the Royal Zoological Society of NSW. In 2001, he was elected a Fellow of the Royal Zoological Society of New South Wales. Professor Dickman is a WWF-Australia Governor and former member of WWF’s Scientific Advisory Panel. Impacts of Land Clearing 2 WWF-Australia PROFESSOR HUGH FORD BIRDS Professor Hugh Ford is one of Australia’s most senior and respected bird scientists. He has over 30 years of experience in the ecology, behaviour and conservation of Australian birds, especially those of eucalypt forests and woodlands. Until recently, Professor Ford was Head of the School of Environmental Sciences and Natural Resources Management, University of New England. Professor Ford is the author of Ecology of Birds: An Australian Perspective. He has edited two books on Australian birds and authored over 100 (book) chapters and journal articles. In 1980, Professor Ford and Dr Howe published a landmark study of the long-term conservation status of birds in the Mount Lofty Ranges of South Australia. Using island biogeography principles, the two scientists predicted that of the original terrestrial bird fauna of about 120 species, almost 50 would eventually become extinct. This was the first Australian study alerting us to the problem of an ‘extinction debt’. The recently started Mount Lofty Birds for Biodiversity Regional Recovery Project aims to tackle this problem. In 1993, Hugh Ford was awarded the Serventy Medal for ‘Outstanding Services to Ornithology in the Australasian region’ by the Royal Australasian Ornithologists Union. Hugh Ford conducted a major project on the impact of habitat loss, fragmentation and degradation on birds with Professor Harry Recher, Dr Denis Saunders and Dr Geoff Barrett, which was supported by WWF-Australia in the early 1990s. Professor Ford is a Governor of WWF-Australia and was formerly a member of WWF’s Scientific Advisory Panel. He is also a member of the Research and Conservation Committee of Birds Australia. Impacts of Land Clearing WWF-Australia 3 EXECUTIVE SUMMARY This report uses the amount of land Due to inadequate or uncertain NSW Government approved in New South Wales approved by public data, the figures in this 639,930 hectares for clearing under the State Government for clearing study do not include the numbers its native vegetation legislation. between 1998 and 2005 inclusively of animals killed as a result of to calculate the impacts of land illegal clearing that occurred in NSW’s wildlife is seriously clearing on the State’s wildlife. NSW from 1998 to 2005, or as threatened and under increasing a result of exempt clearing (ie pressure from a range of traditional According to these calculations legally permitted clearing that threats, such as the clearing of more than 104 million native does not require approval) that native vegetation and the impacts mammals, birds and reptiles have occurred during this time. These of exotic pests, as well as more died or will die as a result of the other clearing activities also result recent factors, such as climate clearing of native vegetation in the deaths of many millions change. NSW can stop the loss and in NSW approved between 1998 of native animals. For example, degradation of valuable habitats and 2005. around 5 million mammals, birds immediately by arresting the extent and reptiles would have been killed of clearing and fragmentation of These include: by the amount of illegal clearing native vegetation, particularly west • over 11 million mammals with estimated by the Auditor-General of the Great Dividing Range, and possums and gliders most to have occurred in 2005. by undertaking the level of research severely affected as well as and monitoring that is essential many millions of kangaroos, This study does not include any to managing natural resources at wallabies, bandicoots, koalas estimates of the amphibians, fish sustainable levels. Alternatively, and wombats; and invertebrates that were also NSW can continue to allow native • around 13 million birds killed as a direct or indirect habitats to be lost or degraded comprising mostly woodland result of the approved clearing and experience irreversible regional and forest birds and including of native vegetation. population declines species of honeyeaters and and extinctions. The study used the known record babblers that are under threat of approved clearing of native of extinction in NSW; and vegetation in NSW from 1998 to • more than 80 million reptiles 2005 inclusively that was published such as skinks and geckos. by the Auditor-General in his 2006 These estimates are highly report, Regulating the Clearing of conservative and the true mortality Native Vegetation: Follow-up of is likely to be substantially higher 2002 Performance Audit. Between than those estimated in this report. 1998 and 2005 inclusively, the Impacts of Land Clearing 4 WWF-Australia According to these calculations more than 104 million native mammals, birds and reptiles have died or will die as a result of the clearing of native vegetation in NSW approved between 1998 and 2005. © WWF-Canon, Martin HARVEY Impacts of Land Clearing WWF-Australia 5 1. BACKGROUND In 2003, the WWF-Australia habitats for short-term gains and 1.1 report, Impacts of Land Clearing reduced their diversity, adaptability 1.2 IMPACTS ON on Australian Wildlife in and long-term productivity through PROTECTION Queensland, analysed the impacts loss of species richness. The WILDLIFE of the loss of native vegetation resultant debt is likely to fall due OF NATIVE OF LOSS on key elements of Queensland’s in 20 to 50 or more years’ time and VEGETATION wildlife.4 That report outlined the will therefore be paid by future OF NATIVE profound effects, both immediate generations as local extinctions IN NSW and long-term, of the clearing of gradually become regional until VEGETATION It is almost a decade since a NSW native vegetation on the survival of entire species are made extinct.6 Government recognised through The Australia State of the Australian wildlife, including the As noted by the Australia State of legislation that the loss or clearing Environment 2006 report states that deaths of many millions of native the Environment 2006 report, the of native vegetation causes serious when land is cleared “everything mammals, birds and reptiles.